Attachment for typewriters



E. H. REYNOLDS AND R. E. BLEAZARD.

ATTACHMENT FOR TYPEWRITERS. APPLICATION FILED AUG=26, 1920.

1,897,454,, Patented Nov. 15, 1921.

4 v 1 I15 9 I5 6- I? v a gnwmtOt a 6 lg 72517702076 Witness ZLZT ZZe z zmz' a2 I I %%w 33 I 1 H34.

, it appertains to make and use the same. 15

nnwrn H. nnrnorms, OFBROGKLYN, new roan, AND nrcnann n. nnnazann, or

FALL RIVER, MeSsAonosErrs. j

ATTACHMENT FOR TYPE'WRITERS.

inca nate.

Specification of Letters Patent. Patean'ttetl NUV. 15 152921.

Application filed August 26, 1520. Serial No. 406,225.

To all whom it may concern:

Be it known that we, EDWIN H. REYNOLDS, a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, and RICHARD E. Bnnnzano, a citizen of the United States, residing at Fall River, in the county of Bristol and State of Massachusetts, have invented certainnew and useful Improvements in Attachments for Typewriters; and we do declare the following to be a full, clear, and exact description of the invention such as will enable others skilled in the art to whlch This invention relates to improvements in attachments for typewriters.

The primary object is toprovide a simple and practical means for readily attaching an eraser to a typewriter and maintainlng the eraser in a position within'easyreach of the operator.

With the above and other objects in View, the invention consists of certain novel features of construction and the combination and arrangement of parts as will be more fully described and claimed.

We attain these objects by the mechanism illustrated in the accompanying drawing; in which Figure 1, is a view showing the eraser attachment in operative position;

Fig. 2, is a vertical longitudinal section of the attachment;

Fig. 3, is a horizontal sectional view of the attachment;

Fig. 4, is a sectional view taken on the line 4-4; of Fig. 2; and

Fig. 5 is a view showing a modified form of attaching means.

Similar numerals of reference designate similar parts throughout the several views.

Reference is now had to the drawing in which the attachment is shown mounted on a typewriter. The typewriter illustrated is the Royal make and in mounting the at tachment thereon one of the screws in the frame is removed and in its place is threaded the projecting end of a pin carried by the attachment. The Underwood machine is provided with a slot shown in Fig. 5 and in mounting the attachment thereon T employ a block as illustrated in Fig. 5.

The attachment includes a substantially rectangular casing 1 formed of metal or other suitable material and has an open upper side'which is closed by a slidable cover 2 having an opening as shown. The ends of the casin are provided with a pair of alined openings 5, in which is mounted a pin to be described.

Disposed in said casing, is a winding drum 4 which is provided with a central longitudinal opening for the reception of a bearing sleeve 5 which snugly fits said opening. The bearing sleeve projects beyond one.

end of the drum and has mounted on it a substantially rectangular centrally apertured plate (iwhich bears against the easlngs as shown in Figs. 2 and i. Spaced from said rectangular plate 6 on the sleeve is another plate 7 preferably, though not necessarily, disk shaped, and between these plates around thesleeve is,disposed a convolute spring 8, one end of which is secured to the sleeve while its other end is secured removably behind a plate 9 fastened to one wall of the casing.

A pin 10 having a head on one end, is passed through the two alined openings 3, sleeve 5 and the plates 6 and 7, serving as a shaft for said parts and having its end threaded and projected beyond the casing for engagement in a threaded screw socket in a typewriter frame or for engagement with a block as shown in Fig. 5.

A chain, cord or other similar element 11 is wound around the drum and has one end connected thereto. The other end is passed through the opening in the cover plate and has a threaded pin 11' secured thereto for separable engagement with a threaded aperture 12 in the hub of an eraser 13 as shown. While an eraser is shown secured to the pin it is understood that other instruments may be similarly attached thereto.

The block 14 as shown, is substantially T- shaped, the head thereof being adapted to contact the inner face of a typewriter frame and have its shank which is substantially rectangular in cross section projected outwardly through the heretofore described opening in the typewriter frame.

In operation, the spring normally retains the eraser in juxtaposition to the casing as shown in Fig. 2 and when the eraser is to be used, it is pulled away from said casing, thereby rotating the drum and tightening the spring so that when the eraser is re leased, it is quickly and automatically drawn back to the position indicated in Fig.

2. It is readily seen that the rectangular plate 6 will eliminate any possibility of the spring getting out of place and prevent the chain from becoming accidentally entangled in the spring.

From the foregoing description taken in connection with the accompanying drawing, the construction and operation of the invention will be readily understood without requiring a more extended explanation.

. Various changes in the form, proportion and minor details of construction may be resorted to without departing from the principle or sacrificing any of the advantages of the claimed invention. 1

We claimi 1. A typewriter attachment including a box-like casing having a pair of alined openings a spring actuated drum in said casing, a pin extending through the drum and open- I ings and projecting beyond said casing, the

portlon of thepln 1n the caslngservlng as a a shaft for the drum and the projecting portion being threaded, a substantially T-shaped centrally apertured block, said block being adapted to have its shank project outwardly through an opening in the typewriter frame,

the projecting portion of said pin being threaded for reception in the aperture in said block to secure said casing to the typewriter, a chain wound on said drum and an eraser on the free end of said chain.

2.7 A typewriter attachment including a substantially rectangular casing having one open'side and a pair of alined openings in its ends, a cover for the open side having an openingtherein, a drum in .said casing, a be'aringsleeve in. said drum and projecting from one end thereof, a substantially rectangular centrally apertured plate mounted on said sleeve and bearing against said casing, a second centrally apertured plate carthreaded end projecting out of the casing to provide means for attaching the entire device to a typewriter. 1

In testimony whereof we have hereunto set our hands. 7

EDWIN H. REYNOLDS. RICHARD E. BLEAZARD.

xix 

